To upload files to a form, first drag and drop the form widget onto the page. Hover over the form widget and click on the pencil icon. Next, drag and drop a formatted upload field. Double click on the field and click the pencil icon to edit it.
An upload field is a field used to upload files onto a form. The uploaded file will be submitted along with the form.This field's advantage is that by using it you can submit not only text in a form, but also files. The upload field widget is a form's widget and can only be added to a form.